Hello Andrey,
I successfully activated number 305.555.0002 without any issue. The reason to make video with number 305.555.0003 is I forgot to create video with 305.555.0002. So I redo the process and made the video with number 305.555.0003.
For Number Cart Error : The issue has been solved. I am currently working on the Lost Order task, the changes for this task is taking effect on the cart functionality. I reverted the code for now.
